Welcome to my Electronics Blog!
In this blog entry, I will introduce my IO uHat for the Raspberry Pi Zero 2W. This particular uHat provides: The IO uHat also hosts an I2C EEPROM as per the uHat specification. The configuration of this EEPROM will be covered in a future entry. The schematic is shown below: Both the GPIO expander and…
This blog entry demonstrates how to interface an HD44780 character LCD to a Raspberry Pi Zero 2W, using Linux kernel drivers. This approach should also work on other Raspberry Pi single-board computers. Configure and load the HD44780 kernel module at boot First, you’ll need to load the correct HD44780 Linux kernel module. This will only…